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Thread: Flex in sewerage pipe
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7th March 2008, 12:01 PM #1
Flex in sewerage pipe
Hi All,
I'll be buying and laying some 100mm sewerage pipe on the weekend and need some advice.
The trench that the pipe will be laid in has a slight curve to it and I was wondering if the 100mm sewerage pipe has much flex in it (I've never used it before) or if I may need an elbow joint along the curve somewhere.
I'm guess I'm really just trying to get an idea of how much flex the pipe has, or what's it's maximum bend radius is.
The pipe will be used as part of a wet stormwater system for filling rain water tanks.Cheers.
Vernon.
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Bite off more than you can chew and then chew like crazy.
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7th March 2008, 01:41 PM #2
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over a length, you will get some bend in a 100mm pipe, I would rather go for a 5 or 15 deg bend in the middle and straighten the the rest of the trench.
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7th March 2008, 02:04 PM #3
Thanks Davo.
Looking at the Iplex website I can find a 15 deg. bend (which is too sharp and angle), but can't find a 5 deg.
Are 5 deg. bends readily available?Cheers.
Vernon.
__________________________________________________
Bite off more than you can chew and then chew like crazy.
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7th March 2008, 04:00 PM #4
It bends quite a bit so, depending on the definition of slight, there should be no problems.
ps: If it is storm water then you should be using storm water pipe, not sewer.
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7th March 2008, 04:56 PM #5Cheers.
Vernon.
__________________________________________________
Bite off more than you can chew and then chew like crazy.
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7th March 2008, 04:57 PM #6
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7th March 2008, 05:28 PM #7
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You can buy 5 degree bends at any plumbing suppliers, I prefer to trim the trench though, and definately not flex the pipe..............
Plumbers were around long before Jesus was a carpenter
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8th March 2008, 03:08 PM #8
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Some shire councils will only let you use stormwater grade for stormwater and dwv for house drain ie Logan Qld, But I dont live there and always use dwv for its better qualities. Any plumbing merchant will have 5 degree bends in F&F and M&F.
If you are not part of the solution then you are the problem
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8th March 2008, 05:10 PM #9
Well I ended up getting a 5 deg elbow when I got the pipe and stuff this morning, but ended up not using it. There was easily enough flex in the 100mm pipe to allow it to follow the trench line (it's quite a sweeping curve).
Thanks all for you help and advice.Cheers.
Vernon.
__________________________________________________
Bite off more than you can chew and then chew like crazy.
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8th March 2008, 09:11 PM #10
Senior Member
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- Jul 2007
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- Sydney-south
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That pipe will fatigue and eventually fail, especially at any joins that happen to be in the curve of the trench!
Plumbers were around long before Jesus was a carpenter
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